Jf4top 180 grit 820 mm x 40 mm is a very flexible, high purity aluminium oxide abrasive material with additional grinding aids in the top coating.
JF4top has a great belt life when used for finishing and polishing anything from stainless steel to brass.
Use for fine grinding.
We particularly recommend JF4top for flexible belt applications (such as the Finitube or Beltit powerfiles) on stainless steel and non-ferrous metals.